What Manuel Corpas’ performance Monday suggested his words revealed Wednesday. The right-hander told The Denver Post that he will undergo surgery Friday to remove bone chips from his elbow.
“I am a little nervous, but it was not getting better even after the cortisone shot,’’ Corpas said.
Corpas went home Monday and noticed the swelling in his elbow as he ate a late dinner. He was unavailable to pitch Tuesday, and a decision was made today to have surgery.
If all goes according to plan, he could pitch again in September. As for a replacement, it’s unclear. The Triple-A candidates include Joel Peralta, who was just sent down, Randy Flores and recently-signed Matt Herges.
Corpas is 1-3 with a 5.88 ERA in 35 games this season.
“This is something that has to be done. I am hoping I can come back and be better,’’ Corpas said.

DENVER — There will be an all-star pitching Friday at Coors Field. But it won’t be Jason Marquis.
What set up as one of the best pitching matchups of the season has dissolved. Marquis will not face Giants’ all-star Matt Cain Friday at Coors Field as planned because of a blister on the middle finger of Marquis’ pitching hand.
He will be pushed back to Tuesday in New York, giving the injury more time to heal.
“We want to be proactive with this,’’ manager Jim Tracy said today.
Marquis has battled the issue for the better part of a month. It was raw during his last home start against Atlanta, but had healed sufficiently during the all-star break to allow him to dominate the Padres last Sunday. But it has not responded in the days between, leading to the rotation adjustment.
As it stands, Jason Hammel will pitch Friday, followed by Jorge De La Rosa, Aaron Cook and Ubaldo Jimenez. Marquis’ next start will be against the Mets on Tuesday.
One day after the bullpen sprung a leak, free agent Mike Timlin worked out again at Coors Field. And will throw another bullpen session Friday, at which point the Rockies will decide whether to offer a minor-league contract.l He remains hopeful that a deal can be reached with the Rockies.
“Sometimes the time off helps,’’ said Timlin, who stayed in shape by playing catch with former teammate Mike Myers and throwing batting practice for his son’s youth team. “God has given me the strength to do this. I believe I can still pitch at this level.’’
General manager Dan O’Dowd reached out to Timlin, who lives in the area. If a deal transpires, it would involve the 43-year-old reporting to the minor leagues to get sharp, not unlike the process going on with Matt Herges.
A look at today’s lineup in the series finale against the Diamondbacks:
LF Smith
2B Barmes
1B Helton
RF Hawpe
SS Tulowitzki
3B Stewart
CF Gonzalez
C Torrealba
RHP Jimenez

Patrick, a third-generation Colorado native, is back for his second stint covering the Rockies. He first covered the team from 2005-2009, helping chronicle “Rocktober” in 2007 and also following the team’s playoff run in 2009.

Nick Groke has worked at The Denver Post since 1997, as a sports reporter, city reporter, entertainment writer and digital editor and producer, among other newsroom posts. He also writes regularly about boxing, soccer, MMA and NASCAR.